We quantified the abundances of 54 major, minor, and trace elements in nine Antarctic carbonaceous chondrites. The chondrites included in this study include Buckley Island (BUC) 10933, Elephant Moraine (EET) 83226, MacAlpine Hills (MAC) 87300, MAC 87301, Meteorite Hills (MET) 00432, Miller Range (MIL) 07513, MIL 07687, MIL 090292, and Queen Alexandra Range (QUE) 99038. Previously published compositional data collected by the same methods used in this work and additional isotopic and petrographic data from the literature are used to examine the chemical group affinities of each chondrite. We show that BUC 10933 is a CV chondrite. EET 83226 has a CV-CK chondrite clan affinity, but its unique isotopic abundances show it to be ungrouped and probably unique. We conclude that MAC 87300 and MAC 87301 are likely paired, and they appear to be compositionally intermediate between CM and CO. MET 00432 has distinct compositional differences from Tagish Lake and is somewhat more CM-like in composition than Tagish Lake-like. Although unrelated, QUE 99038 and MIL 07513 lie between the CV and CM chondrites in bulk composition. MIL 07687 is CM in terms of bulk composition. MIL 090292 lies between the CV and CO chondrites in bulk composition.
McMonigal et al. (Wed,) studied this question.